Week 1 is the widest-error week of the season for every model, ours included — nothing about 2026 is on tape yet, and the ratings are priors, not measurements. With that stated plainly: the Colts rate +0.0 (15th), the Ravens +1.2 (13th), and the model opens on the Colts by 1.5, 54% to win. Every number on this page will move more between now and kickoff than it will in any week that follows.
Season-long, the model can barely split them: 8.7 projected wins for the Colts against 9.2 for the Ravens, favored in 10 and 10 of their 17 respectively. Two teams heading for the same neighborhood in the standings tend to produce exactly this kind of line. This game sits 12th-hardest on the Colts' schedule and 3rd-hardest on the Ravens'.
The sharpest unit gap in the game runs one way: the Ravens offense grades +1.0 (12th of 32) against a Colts defense at -1.7 (23rd) — 2.8 points of separation on our scale, and the single biggest reason the line sits where it does. Going the other direction, the Colts offense (+1.1, 11th) meets the Ravens defense (-0.3, 11th), a 1.4-point gap.
One team has owned this series: the Colts are 8-4 in 12 regular-season meetings since 2002. They have also met 3 times in the playoffs. They last met in 2023: Colts won 22-19 in September. Over their last 4 meetings the Colts are 1-3. Worth saying plainly — the model does not know any of that. It reads 2026 ratings and nothing else, so a lopsided series is a story, not a number on this page.
Calibration check, because a near-even number is the easiest kind to overtrust: across 3266 walk-forward games (2013-2024) the model gave a side 50-55% in 870 of them, and those sides won 52%. The Colts at 54% are in that band. A margin that thin is why we would rather wait for a price than call it a lean.
Kalshi's KXNFLGAME-26SEP13BALIND contract implies 50% for the Colts against our 54% — a 4.4-point gap. That clears our 5-point threshold, which flags the Colts as the value side.
Prediction markets are not sportsbooks — you trade a contract that settles at $1 or $0, not a wager against a house line. Informational only; trade responsibly.